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Oil Leak help

2K views 13 replies 9 participants last post by  misternikko 
#1 ·
I noticed this leak a few weeks ago before i went on a ride, I noticed I was low on oil. The bike at that point only had 2650 miles on it. Last oil change was at 500. So I canceled my. A week later I cleaned everything coated in oil and even the front sprocket area to rule that out. I changed the oil and put a new filter on it. Made sure there were no signs of oil residue and took it for a short 25 -30 mile ride around town. Got back and no signs of oil. Today I took it out for about 75 miles and when I got back noticed the leak was back. Below are pics the best I could get. I can't really tell where the sign of the leak is but there are some places where more is noticeable then others. I know it is not a result of chain oil. I have to say I am very frustrated by this at now a little over 2700 miles on the bike. Anyone else see this so early on a 2012 T100, or have ideas where it is originating from.





 
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#2 ·
Very nice pictures, you have a good camera there. However, the exact location of this leak is a bit ambiguous. Is that the primary cover or the triangular timing cover? Either way, if the dealership isn't too far away, I'd take it there for some warranty work. Since about 1972, new Triumphs aint supposed to leak. Period.
 
#3 ·
Taken with an iphone.

Here is a parts schematic from Bike Bandit. Cover 21 seems to be where it is centered around, but it is hard to really tell.

 
#5 ·
i bet its the seal behind the front sprocket .It will fool you .What you need to do is take sprocket cover off clean around Tthe shaft seal real good ,ride the bike get it good and hot.put bike on side stand let it idle and watch shaft seal.Cut it off and watch for oil allso.What hapens about 80% of the time the oil runs out of seal then runs down the shifter cover and you cant see that the seal is leaking.I found this out the hard way lol.
 
#12 ·
I reckon that's what it is too as have been chasing this annoying leak for ages and have finally nailed it down to this seal

the leak on my bike looks exactly like in your photos
 
#7 ·
Well I cleaned everything up and took for a 40 mile trip and it does appear to be weeping from behind the front sprocket and riding the gear box gasket do to underneath the bike. So judging from some searches this is pretty common?


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#9 ·
Anyone have any instructions on doing this. I should have the dealer do it but coming into winter and them being a good 45 minutes away, I may do it myself if it is easy enough. It doesn't lose a lot of oil, but I don't want to have to keep worrying about it especially when the bike is this new.
Even if I have them do it, I would really be interested in knowing how to do it myself. I used to tear into my harleys all the time, but for some reason I am timid to do anything to involved just yet on this bike. Probably the newness factor.
 
#11 · (Edited)
It might be nothing more than loose bolts. Check them first, I seem to remember one or two posters finding them loose. You'll need an 8mm wrench.

The recommended torque is just 9 Nm (6.64 Ft/lbs), little more than hand tight, don't overtighten.

If you need to replace the gasket the cover is nothing more than a cover, there's nothing attached to it and it comes off easily for gasket replacement. A new gasket is part number T1260969.
 
#13 ·
Made sure all if the bolts were tight. It's hard to really find it because it isn't a pro dominant leak from the o ring but I suppose it weeps a little and eventually collects underneath the gearbox cover. I'll call the dealer today and I might even have them come and pick it up since it is inconvenient for me to get it to them. Since the bike doesn't even have 3k on the clock yet I don't think that is an unreasonable request.


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